CHINA> Regional
![]() |
Rail line opens way for future
By Xin Dingding (China Daily)
Updated: 2009-01-10 07:44
Two-and-a-half years' safe operation of the Qinghai-Tibet railway has proven that China's technologies in building railways on frozen earth are ready to be used in more projects, a leading scientist said. The longest and highest railway in the world also received a State Special Award for Scientific and Technological Progress on Friday. "The set of technologies that solved problems about frozen earth and altitude sickness can benefit many other projects, such as the future Xinjiang-Tibet railway and the petroleum pipelines across Northeast China," Cheng Guodong, professor and president of Lanzhou branch of the Chinese Academy of Sciences, said in an interview. The technologies are also likely to make building an expressway on the Qinghai-Tibet Plateau possible, he said. The Ministry of Transport and Cheng's branch are currently doing research on the idea, but it is still in the very early stages, he said. "Technically it is possible, but building expressways are definitely more difficult than railways, because expressways are rigid and inflexible, not like rail tracks," he said. So far, the Qinghai-Tibet railway has operated safely and no fatal accidents have occurred since its opening on July 1, 2006, Sun Yongfu, former vice-minister of railways, said in an interview. By last May, 1.48 million passengers have ridden the train into Tibet and 1.52 million out of Tibet, said Sun, who is also an academician with China Academy of Sciences. Though nearly half (550 km) of the railway is built on frozen earth - under-zero soil containing ice, which thaws in warm weather and causes the earth subsidence, data show the rail tracks on frozen earth subsided less than 2 cm each year. It is "quite an achievement", because controlling the subsidence within 30 cm can already be called the world's best record, he said. In Russia and Canada, which also have railways on frozen earth, serious subsidence has made trains run much slower than designed, at 50-70 kph. "Our trains have run at the designed speed of up to 100 kph," Sun said. The railway has also survived earthquakes that shook the Tangula area four times in June 2008. In the near future, a new railway will be built from Lhasa to Xigaze, and before 2020 a railway is planned connecting Xinjiang Uygur autonomous region and Tibet. In the long term, there will also be railways entering Tibet from Chengdu in Sichuan province and Kunming in Yunnan province, he said. In 2007, Tibet autonomous region gained 4.8 billion yuan from tourism revenue, up 73.3 percent year on year. Qinghai province gained 4.7 billion yuan, up 31.6 percent, according to official statistics. |
主站蜘蛛池模板: 香港aa三级久久三级老师 | 免费一级毛片正在播放 | 国产第一页久久亚洲欧美国产 | 久久精品视频一区 | 99久久精品免费看国产 | 99爱在线精品视频网站 | 国产精选经典三级小泽玛利亚 | 国产成年人在线观看 | 狠狠做久久深爱婷婷97动漫 | 欧美黄视频在线观看 | 操操网站 | 国产午夜伦伦伦午夜伦 | 精品国产欧美一区二区 | 4438全国最大成人网视频 | 男女扒开双腿猛进入爽爽视频 | 99爱免费视频| 亚洲国产tv | 中文字幕亚洲一区二区三区 | 国产手机精品一区二区 | 亚洲高清在线观看播放 | 免费看岛国视频在线观看 | 免费看a级毛片 | 青木玲中文字幕一区二区 | 综合亚洲精品一区二区三区 | 欧美亚洲日本韩国一级毛片 | 91香蕉视 | 国产免费怡红院视频 | 一区二区三区欧美在线 | 亚洲精品国产男人的天堂 | 成人国产精品一级毛片视频 | 亚洲成人黄色片 | 欧美亚洲国产精品久久久久 | 中文字幕一二三区乱码老 | 国产成人狂喷潮在线观看2345 | 久草视频国产 | 欧美日韩在线观看精品 | 日本在线www | 99国产精品视频免费观看 | 亚洲精品乱无伦码 | 亚洲欧美一区二区视频 | 国产理论最新国产精品视频 |